Roller-skate



(No Model.)

0. HANSON.

ROLLER SKATE. No. 321,434. PatentedJuly 7, 1885.

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OLAUS HANSON, OF WORCESTER, MASSACHUSETTS.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 321,434, dated July 7, 1885.

Application filed March 10, 1885. (No model.)

To aZZ whom it may concern.-

Be it known that I, OLAUS Hanson, a citizen of the United States, residing in the city and county of Worcester, State of Massachusetts, have invented certain new and useful Improvements in Roller-Skates, of which the following is a specification.

My improvements relate to that class of skates in which the roller-carrying device is pivoted on an incline or angle to the plane of the foot-rest, so that the tipping or pressure of said i'ootrcst toward either side tends to turn the axles of the rolls from their parallel position to an angular one in regard to each other. They are designed to retain the roll-carrying plece in (or return it to) its normal or central position, and to preserve thattendcncy under all circumstances. Their nature is fully shown in the following description of the accompanying drawings, representing a roller-skate embodying my invention.

In said drawings, Figure 1 is a side view or elevation. Fig. 2- is a central section of the parts adjacent to one pair of rolls. Figs. 8 and r are views of the same, as seen at right angles to the plane a Z; of Fig. 2, with a part shown in sect-ion. I

The same letters indicate the same parts wherever they occur.

A is the foot-rest or top of the skate in the holder 13, is slightly embedded, and is firmly held, as by the screw G. The holder B is made with an inclined face, on which rests the roll-carrying T-piece C, which is held in place by the screw E, which forms a firm pivot, whereon it can turn, the holder B, having also a socket, with a rib, I, at its middle, corresponding in width to the end or tongue L of the piece 0, which moves in a slot in one side of the socket and rests over the rib I when the axle of the rolls is square with the center'line of the top A, the pistons or followers N ll then resting against the tongue L, where they are held by their springs H H, which are retained by the screws F F, the followers N N resting against the rib I whenever the tongue L is moved toward the other side away from its central position. The piece 0 has a curved shoulder, 6,011 each side of the tongue L, which fits the ends of the slot in the socket, so as to exclude all dirt or dust that might interfere with the working of the pistons or springs. The rolls D D are held on a shaft driven through the lower part of the piece G, as shown, or in any of the com mon ways. The two sets of rolls are set with their holders on the top A, so that their respective inclines are pitched in opposite directions, as shown in Fig. 1, to give the well known effect of obliquity of the axles when ever the top A is pressed down on either side, the motion of the tongue compressing one of the springs, while the follower of the other rests against the rib I, as seen in Fig. 4, offering no resistance to the return of the tongue L by the action of the compressed spring on the release of the pressure. Thus the springs only act to return the rolls to their normal or square position.

I t will be seen that the rib in the socket performs an important part in limiting the action of the springs to their own side of the center only, so that if either should give out, break, or become weak the other will not tend to force the tongue to that side to throw the rolls out of their parallel position, as would be the case withoutthe rib.

Having thus fully described my invention, what I claim therein as new, and desire to patent, is-

In a roller-skate, the combination of the pivoted roll-carrying ..T-piece having a tongue whose end passes through a slot in a tubular spring-holder, provided with a mid-rib limiting the action of its spring-bearing pistons, with the slotted spring-holder, the spring-pis tons, and retaining-screws, substantially as and for the purposes set forth and described.

' OLAUS HASSON.

XVitnesses:

Jas. G. ARXOLD, KILo Vans. 

